Vapofnstove



H. A. DOW. VAPOR STOVE (N0 odem Patented Nov. 13, 1883.

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PATENT HIRAM A. DOW, OF CINCINNATI, OHIO.

VAPOR! STOVE.

SPI'JJIFIGATION forming part of Letters Patent No. 288,216, dated November 13, 1883.

Application filed June 19, 1883.

To all whom it may concern.-

Improvements in Vapor-Stoves, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to those vapor-stoves which are provided with air-pressure attachments for the purpose of forcing gasoline or other similar fluid out of the reservoir; and myjmprovement consists in constructing such attachments on the principle of the apparatus commonly known. as the Hungarian fountain or Ohemnitz water-engine, the two water-tanks employed with said fountain or engine beingarranged in the present case so as to be inverted. with reference to each other, in order that the water in each tank may be alternately adapted to produce the' desired pressure in the gasoline-reservoir, which latter vessel isstationary. These invertible water-tanks and fixed gasoline-reservoir communicate with each other by means of a system of pipes, ports, and channels, the peculiar arrangement of which devices enables the compressed air to act constantly on the surface of the gasoline or other vapor-generating fluid or fluids, as hereinafter more fully Inthe annexed drawings, Figure 1 is a side elevation of a vapor-stove provided with my improved air-pressure attachments. Fig. 2 is an end elevation of the stove, the water-tanks being shown inverted with reference to their position seen in Fig; 1. Fig. 3 is an enlarged vertical section of the apparatus, taken in the plane of the pipesthat connect the invertible water-tanl'rs. Fig. 4is an enlarged end elevation of the gasoline-reservoir. Fig. 5 represents the inner surface of the aforesaid end of the reservoir. Fig. 6 is an axial section of said reservoir and its more immediate attach ments. Fig. 7 is an elevation of the face of the valve that is attached to the pipes of the water-tanks. Fig. 8 is a plan of retaining device that preserves-said pipes erect.

The stove A, which may be of any suitable size and shape, has fastened to it the supplypipe B, from which proceed branches 1), the

(No model.)

latter being provided with customary cocks or regulators, &c. One end of this fixed pipe screws into the hollow spindle c of a seat, 0, said seat being soldered to one of the heads of the gasoline-reservoir D, which latter is preferably cylindrical. Furthermore, this seat has four ports, E E F F, as seen in Fig. 4, the ports E E communicating with each other by a passage or channel, indicated by the dotted lines 6. The ports F F, however, have no connection with each other, but the upper one, F, has an inlet, f, that admits air to the interior of the two water-tanks. Port F has at tached to it a pipe, j, that is carried up almost to the top of the gasolinereservoir D, the object of this pipe being to admit compressed air into said reservoir. Communicating with the inner end of hollow spindle c is a pipe, I), that serves as an extension of the supply-pipe B, said pipe b being carried down almost to the bottom of the reservoir D, so as to allow all the gasoline to be forced out of the same.

Reservoir D has a neck, (I, the lower end of which is somewhat below the level of pipe f, in order that said reservoir may not be filled so full as to cause the gasoline to'enter said pipe. This difficulty is obviated by the air compressing in the upper part of reservoir 1),

as soon as the gasoline reaches the level of neck (Z.

G is a suitable packing or gasket interposed between the seat 0 and a valve, H, the latter being provided with four ports, I I J J, adaptedto communicate, respectively, with the ports E E F F of said seat. Furthermore, this valve H has a central circular bore, 72, that turns freely on the hollow spindle c of seat 0, said bore being more clearly seen in Fi 7.

'lapped into the ports I J are pipes K L, that communicate with one of the invertible water-tanks M, the pipe K reaching only to the bottom of said tank, while the other pipe, L, extends almost or entirely to the top of the same. It is preferred, however, to carry this pipe L up to the top of the tank and solder it thereto, so as to stiifen said tank; but in this case one or more slots or other openings Z must be made at the upper end of said pipe to afford communication with the vessel M.

' asspzie Tapped into the ports I J are pipes NO, that communicate with the other invertible watertank, P, the pipe N reaching down to the bottom of said tank, and being pierced at a, while the pipe simply enters said tank.

R is a washer that bears against the rear or solid face of valve H, said washer being held in place by a nut, S, that engages with the eX- ternal thread, 0, of the tubular spindle c of seat 0.

T T represent ordinary screw-threaded caps,

valves, or other devices wherewith the vessels D, M, and P can be conveniently charged.

Attached to the end of table or stove A is a plate having a socket or pocket, U, terminating with inclined planes to a, said socket being adapted to allow the pipes K L or N 0 to snap therein, and thereby retain the watertanks in their proper positions.

The apparatus being in the position seen in Figs. 1 and 2, and the vessels D M having been filled, respectively, with gasoline and water, the operation is as follows: The port J of valve H being now in communication with port F of seat 0, it is evident air is allowed to enter at. inlet f, flow through said ports F J and pipe L Z into the tank M, thereby permitting the escape of water from said tank. This water descends pipe K, flows through port I of valve H into port E of seat 0, thence along the channel 6 of said seat into the port E.

' From this 'openin g E the water passes into port I, and, descending the pipe N n, is finally discharged into the lower water-tank, P. As the water gradually rises within this tank, the air contained therein is expelled, being forced up through pipe 0 into port J, thence through the communicating port F into the pipe f of reservoir D. Consequently this compressed air acts on the surface of the gasoline in said reservoir, thereby driving the fluid up the pipe I) into thehollow spindle c, and along the latter into the supply-pipe B and its attached branches 1) b b. This action continues as long as there is any water in the tank M, but as soon as the latter is emptied the pipes K L are sprung out of the keeper U a a, and the apparatus is then swung around on the fixed spindle 0, so as to completely invert-the tanks M P, thereby elevating the vessel P above the stove, as seen in Fig. 2, in which position of said tanks the pipes N 0 engage with said keeper.

' It is evident the pipe 0 now communicates with the ports E E and channel e, thus allowing the contents of tank P to flow down said pipe, ports,and channel, andentr the tank M through pipes L Z. It is also apparent that the air in tank M is now driven up through pipe K, ports I F, andpipe f, so as to act on the surface of the gasoline in reservoir D, as previously described. Furthermore, it is evident that the port I of valve H is now in communication with the port F of seat 0, thus allowing air to enter at the inlet f, and flow through said ports into the pipe N, the opening of which, it, permits air to escape into tank P.

It will thus be seen that the inlet f is the channel through which enters all the air that is used for producing the desired pressure on the surface of the gasoline in reservoir D.

I claim as my invention 1. In combination with a gasoline-reservoir, a pair of invertible water-tanks united with a system of pipes and ports, which are so arranged as to permit the water in the uppermost tank to compress the air-in said reservoir, substantially as herein described.

-2. The fixed supply-pipe B, having an ex tension, 1), carried down almost to the bottom of gasolinereservoir D, said reservoir having attached to it a seat, 0, provided with ports E E F F, a channel 6, inlet f, and pipe f, these ports E E F 'F being arranged to communicate with the ports I I J J of valve H h, which latter is furnished with pipes K L N 0, connected to the water-tanks M P, in the manner described, the valve H h and its attached pipes K L N 0 being arranged to revolve around the hollow spindle 0 of seat 0, for the purpose herein explained. I

3. The gasoline-reservoir D, having a pipe, f, that admits air thereto, and a neck, d, that enables said reservoir to be filled, the lower end of said neck being somewhat below the top 

